Length of watering hose for cultivating plants

ABSTRACT

A length of hose made of a flexible and weather-proof material having high elasticity e.g., a suitable synthetic resin, or plastics or a co-polymer of ethylene vinyl acetate resin, having a plurality of incisions formed in the wall of the hose from inside to outside at proper portion thereof, and comprising a strengthening means such as a longitudinal cross shaped pressback means made of polyethylene or a co-polymer of acrylo nitrile ethylene or ethylene vinyl acetate inserted into the hose; the hose may instead be provided with longitudinal stiffening ribs on the surface thereof; longer lengths of the hose may be formed by joining shorter lengths of the hose by means of adaptors.

United States Patent Y Takanashi [151 3,662,955 [451 May 16, 1972 1541LENGTH OF WATERING HOSE FOR CULTIVATING PLANTS [21] Appl. No.: 18,163

[30] Foreign Application Priority Data Nov. 18, 1969 Japan......44/l08921 June 6, 1969 Japan ..44/52427 [56] References Cited UNITEDSTATES PATENTS 2,771,320 11/1956 Korwin ..239/4sox 2,730,404 I/ l 956Meisinger et a1. ..239/269 2,750,232 6/1956 Szantay et al. ...239/269 X3,080,124 3/1963 Rathmann .239/450 Primary Examiner-Lloyd L. KingAttorney-Holman, Glascock, Downing & Seebold ABSTRACT A length of hosemade of a flexible and weather-proof material having high elasticitye.g., a suitable synthetic resin, or plastics or a co-polymer ofethylene vinyl acetate resin, having a plurality of incisions formedin'the wall of the hose from inside to outside at proper portionthereof, and comprising a strengthening means such as a longitudinalcross shaped pressback means made of polyethylene or a co-polymer ofacrylo nitrile ethylene or ethylene vinyl acetate inserted into thehose; the hose may instead be provided with longitudinal stiffening ribson the surface thereof; longer lengths of the hose may be formed byjoining shorter lengths of the hose by means of adaptors.

2 Claims, 8 Drawing Figures Patented May 16, 1972 3,662,955

2 Sheets-Sheet .1

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ATTORNEYS Patented May 16, 1972 3,662,955

2 Sheets-Sheet 2 INVENTOR min/we a u 77; lmvnsa/ ATTORNEYS BACKGROUND OFTHE INVENTION 1. Field of the Invention The present invention relates toa length of hose made of flexible and weather proof material to sprinkleplants with water or to supply fertilizer solution for cultivation.

2. Description of the Prior Art When cultivating plants in fields or ina green house, such means as a splinkler or a watering pot havingperforations, is known to be used.

However, it not only takes much time, but also, has had such drawbacksas uneven watering on the plants.

Also known are apertured hoses which however tend to have blocked holesin the course of usage because of mud and dirt consolidating in theapertures.

The present invention is intended to eliminate such trouble anddrawbacks.

SUMMARY OF THE INVENTION The object of the present invention is toprovide an improved hose means which will eliminate the defectsmentioned above, and will water evenly over the plants in an easy way.

The length of hose 2 of the present invention is made of a weather-proofand flexible material having high elasticity such as a suitablesynthetic resin, plastics or a co-polymer of ethylene vinyl acetateresin; the hose has a plurality of incisions formed through the hosewall from inside to outside, for the purpose of sprinkle plants withwater through the incisions which resiliently open under internal waterpressure to sprinkle water out of the hose. The opening formed variesaccording to the size of the cut 3 and the degree of elasticity of thematerial and the angle of the cut formed in the hose.

Water can be sprinkled to extend as far as desired with an increasedwater pressure.

The cuts 3 opened by a water pressure in the hose are closed byreleasing the pressure so that the water that remains in the hose 2 willnot leak through the closed cuts 3 and dirt or mud will not enter thehose 2 when it is used on the ground as shown in FIG. 3.

But, if sand or mud were mixed with the remaining water in the hose, itwill be pushed forward by giving an increased water pressure through theopened cuts 3 so that they will not be clogged up.

It is very easy to water all over the plants in the fields or in a greenhouse evenly without any trouble by using the hose of the presentinvention.

For the purpose of preventing the hose 2 from collapsing a longitudinalpress-back means 8 the cross-section of which is a cross shape as shownin FIG. 5, and made of polyethylene or a co-polymer of acrylo nitrileethylene or ethylene vinyl acetate is inserted into the hose.

To connect lengths of hose to farm longer lengths as desired, an adapter11 is employed which can also prevent the press back means from beingpushed out of the hose by water pressure, as shown in FIG. 8.

As the hose of the present invention is manufactured by a certainlength, it is not only very convenient to use or to sell, but also, itis resilient so that it can spring back against being bent or twisted oreven against thermal deformations.

The length of flexible hose 2 and the press-back means 8 can be massmanufactured by molding, so that the cost of production is very low.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side verticalcross-sectional view longitudinally taken through a hose with incisions.

FIG. 2 is a vertical cross-sectional view taken through the centralportion of one embodiment of the invention.

FIG. 3 is an elevational view of the embodiment of FIG. 2. being used infields for watering.

FIG. 4 is an elevational view of the device of FIG. 2 being used in agreen house.

FIG. 5 is a vertical cross-sectional view taken through the centralportion of another embodiment of the invention including a press-backmeans.

FIG. 6 is a vertical cross-sectional view of a further embodimentsimilar to that of FIG. 5.

FIG. 7 is a vertical cross-sectional view of the hose being depressed.

FIG. 8 is a side vertical cross-sectional view longitudinally takenthrough the device connected with each other by an adapter.

DETAILED DESCRIPTION A length of hose 2 of the invention, as shown inFIG. I, is mounted on a support bed 1 which is integral with the hose 2.

A plurality of incisions 3 are formed through the wall of the hose. Onthe top of hose is formed a projected lone longitudinally for indicationand around the surface of the hose are formed a plurality of grooves andprojections 5.

When the length of hose is used, it is put on the ground between plantrows 6 as shown in FIG. 3, and when it is used in a green house 7, itcan be fixed below the ceiling as shown in FIG. 4. The length of hose isconnected to a water supplying pipe through a water supplying valve andwhen the valve is opened, the cuts 3 of the hose are opened by a waterpressure and through the cuts 3 water is supplied evenly all over theplants 6.

When the length of hose 2 is used under the ground for the purposesdistributing a liquid fertilizer, a longitudinal pressback means 8having a cross section of a cross is provided with a pair of wings 9crossed and extending radially outwardly. Fluid fertilizer is suppliedthrough the opened cuts 3 being forced out of the length of hose 2 as bywater pressure, to the plants 6.

The press-back means 8 is made of flexible material such as suitablesynthetic resin, polyethylene or acrylo nitrile ethylene or ethylenevinyl acetate and formed longitudinally almost as long as the length ofa length of hose 2.

An adapter 11 having a little larger diameter than that of the inside ofthe hose, is inserted into hoses at its both ends to connect them. Theadapter 11 prevents the press-back means from coming out of the hose bybeing forced by water pressure.

As shown in FIG 7, when a heavy thing happens to mount on the hose 2 anddepresses it, the press-back means 8, 9 not collapsing fully preventsthe water flowing through the hose from stopping, owing to itselasticity. In case the hose 2 is twisted, the twisted portion does notconcentrate upon a limited portion but separates and spreads upon thesurface of the hose uniformly owing to the press-back means 8, and thehose will never break, whereas a hose having no press-back means may bebroken.

Further, even if the passage for water becomes narrow by an increasedtwisting, the press back means will let water flow without stopping.

Although the present invention has been described in conjunction with apreferred embodiment, it is to be understood that modifications andvariations may be resorted to without departing from the spirit andscope of the invention, as those skilled in the art will readilyunderstand. Such modifications and variations are considered to bewithin the purview and scope of the invention and appended claims.

What I claim is:

1. In a flexible hose made of a resilient material and of the typeprovided with incisions in the tube wall which are leakproof when thehose is not in use but resiliently open up when a liquid under pressureis pumped therethrough to give out jets of the liquid, the improvementbeing in that the hose comprises stiffening means disposedlongitudinally of the hose, said stiffening means comprising elongatedpress-back means inserted into the hose, extending substantially thelength of the hose, the press-back means including in cross-sectionradially projecting members so as to provide mechanical strength to thehose, and to resist the hose being fully collapsed under a load so as tomaintain continuity of supply of the liquid.

2. The hose as claimed in claim 1, which further includesinterconnecting tubular means adapted to be inserted into the ends ofhose sections to connect serially shorter lengths of the hose to form alonger length thereof, and wherein each said tubular means is adapted toprevent an adjacent press-back 5 means from being conveyed away bypressure liquid in the hose.

l l l I i

1. In a flexible hose made of a resilient material and of the typeprovided with incisions in the tube wall which are leakproof when thehose is not in use but resiliently open up when a liquid under pressureis pumped therethrough to give out jets of the liquid, the improvementbeing in that the hose comprises stiffening means disposedlongitudinally of the hose, said stiffening means comprising elongatedpress-back means inserted into the hose, extending substantially thelength of the hose, the press-back means including in cross-sectionradially projecting members so as to provide mechanical strength to thehose, and to resist the hose being fully collapsed under a load so as tomaintain continuity of supply of the liquid.
 2. The hose as claimed inclaim 1, which further includes interconnecting tubular means adapted tobe inserted into the ends of hose sections to connect serially shorterlengths of the hose to form a longer length thereof, and wherein eachsaid tubular means is adapted to prevent an adjacent press-back meansfrom being conveyed away by pressure liquid in the hose.